// RUN: not --crash %target-swift-frontend %s -parse

// Distributed under the terms of the MIT license
// Test case submitted to project by https://github.com/practicalswift (practicalswift)
// Test case found by fuzzing

func b
{
{class A{class A:CollectionType
struct B{struct B<T where g:a{
class B<b{
class A{class A{class A:CollectionType
